add simple test app

agent/example/deployment.yaml

@@ -0,0 +1,19 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nginx-deployment
+spec:
+  selector:
+    matchLabels:
+      app: nginx
+  replicas: 2 # tells deployment to run 2 pods matching the template
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx
+        image: nginx:1.14.2
+        ports:
+        - containerPort: 80

agent/example/ingress.yaml

@@ -0,0 +1,21 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: test
+spec:
+  ingressClassName: nginx
+  tls:
+  - hosts:
+    - test.cd-demo.onplural.sh
+    secretName: test-tls
+  rules:
+  - host: test.cd-demo.onplural.sh
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service: 
+            name: example
+            port: 
+              name: http

agent/example/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: example
+  labels:
+    app: example
+spec:
+  type: ClusterIP
+  ports:
+  - port: 80
+    targetPort: 80
+    protocol: TCP
+    name: http
+  selector:
+    app: nginx

agent/pkg/manifests/template/raw.go

@@ -14,12 +14,14 @@ import (
 )
 
 var (
-	liquidEngine = liquid.NewEngine()
+	liquidEngine   = liquid.NewEngine()
+	sprigFunctions = []string{"toJson", "fromJson", "b64enc", "b64dec", "semverCompare", "sha256sum"}
 )
 
 func init() {
-	for name, fn := range sprig.TxtFuncMap() {
-		liquidEngine.RegisterFilter(name, fn)
+	fncs := sprig.TxtFuncMap()
+	for _, name := range sprigFunctions {
+		liquidEngine.RegisterFilter(name, fncs[name])
 	}
 }